12-23-2019
Did you clear and rebuild the font cache, completely?
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LEARN ABOUT DEBIAN
dtk_destroy_font
DTK_LOAD_FONT(3) Draw Toolkit manual DTK_LOAD_FONT(3)
NAME
dtk_load_font - Load an font
SYNOPSIS
#include <drawtk.h>
dtk_hfont dtk_load_font(const char *fontname);
void dtk_destroy_font(dtk_hfont font);
DESCRIPTION
dtk_load_font() loads the font specified by fontname argument. This should be the path of a file whose file format can be any of the file
format supported by the freetype library (TrueType and Type 1 among many others) or a font description pattern understood by fontconfig
(like "Times new roman:bold"). dtk_load_font() will first interpret fontname as a font filename and then, if this fail interpret as a font
pattern and load the closest font available on the system.
Upon creation, the font data is then tracked by an internal resource manager so that the next call using the same fontname argument will
return the same font handle, thus sparing the resources of the system.
There is no need for a valid window to create successfully a font, i.e. font loading is completely decoupled from the creation of others
resources and can even be created in one thread to be used in another one.
dtk_destroy_font() frees the resource referenced by font. If the font is used several times, i.e. several call to dtk_load_font() with the
same file path, it decreases the number of uses by one.
Calling dtk_destroy_texture() on each created font is currently not mandatory since all font remaining fonts are destroyed when the last
window is closed. However, if no window can be closed (for example, no window has been created), dtk_destroy_font() should be called on
each created font to avoid any memory leak.
RETURN VALUE
In case of success, the dtk_load_font() returns the handle to the loaded font. In case of failure, NULL is returned.
dtk_destroy_texture() does not return any value.
THREAD SAFETY
dtk_load_font() and dtk_destroy_texture() are thread-safe.
SEE ALSO
dtk_create_string(3) fc-list(1) FcPatternFormat(3)
EPFL
2010 DTK_LOAD_FONT(3)